The Transformed Eulerian Mean (TEM) equations, commonly invoked to
quantify Lagrangian mass-transport in Earth's Ferrel cells, describe
a circulation driven by the diabatic heating term [1]}.
The TEM formulation can be derived from the momentum and thermodynamic
equations, under Boussinesq and quasi-geostrophic approximations ([1]},
ch. 10.3), resulting in
\(\frac{\partial \bar{u}}{\partial t}-f\bar{v}^{*}=\nabla \cdot { \mathcal {{F}}},\) 
